Two exterior angles of a triangle may both be
A. Acute
B.Right
C.Obtuse
D. Reflex
2006-09-02 10:22:37 · 18 answers · asked by kevinli 1 in Education & Reference ➔ Homework Help
A Acute as three angles must add up to 180 degrees and an obtuse angle is in excess of 90 degrees, 2 right angles equal 180 degrees
2006-09-09 13:54:49 · answer #1 · answered by artistformerlyknownasloader 2 · 0⤊ 0⤋
The answer is obtuse, because the inner angles of triangle are usually acute, and the exterior angle of a triangle is the sum of the inner triangle subtracted from 180 degrees. that's a straight line in case your wondering,
so if you have a triangle with 2 - 45 degree angles and one right angle (90 degrees). you would take 180-45=135 degrees to get the 2 exterior angles, and then take 180-90=90 to get the sum of the other angle.
The 3 exterior angles should equal 360 degrees, which is a full circle when they are added together...and incase you're wondering, a reflex angle is an angle that is greater than 180 degrees, but less than 360 degrees
2006-09-02 17:47:12 · answer #2 · answered by cinquefoil_solis 3 · 0⤊ 0⤋
That would have to be an obtuse angle because right angles can only be possible on two sides with squares or triangles and the law says that the interior angles of a triangle should sum up to180degrees so iguess if the angles are equal they would have to be between 60 and less than 90, and since angles in a straight line are 180 degrees it will make it a reflex angle as a reflex angle is more than 180
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2006-09-08 19:38:25 · answer #3 · answered by fatima b 4 · 1⤊ 0⤋
The sum of two exterior angles should be obtuse since the sum of all angles in a triangle is 180 and one exterior angle is equal to the sum of other two opposite interior angles. So they are obtuse
2006-09-09 23:13:16 · answer #4 · answered by Sankaranarayanan R 2 · 0⤊ 0⤋
the answer is c. obtuse,
because the largest two exterior angles of a triangle you can obtain can only be on an equilateral triangle, and an obtuse angle is such that is greater than 90° and less than 180°.
2006-09-09 23:07:42 · answer #5 · answered by scooby doo 3 · 0⤊ 0⤋
they can only be acute because all the sides of a triangle equals 180 degrees there can never be 2 obtuse or right angles on a triangle.
2006-09-09 11:40:16 · answer #6 · answered by Anonymous · 0⤊ 0⤋
I'd guess obtuse. Only the interior angles can be acute of right (= of < 90 degress). I don't know what a reflex angle is.
2006-09-02 17:32:10 · answer #7 · answered by swhlye 2 · 0⤊ 0⤋
acute means less than 90 degrees, right means exactly 90 degrees and obtuse means more than 90 degrees, it is impossible to have two obtuse or right angles but you can have two acute angles, not sure what reflexive is but since a is correct i imagine reflexive is wrong
2006-09-02 17:33:52 · answer #8 · answered by Yauna P 2 · 1⤊ 0⤋
Acute and Obtuse
2006-09-09 21:39:02 · answer #9 · answered by free_city_stl@sbcglobal.net 2 · 0⤊ 0⤋
C.obtuse
2006-09-10 17:10:17 · answer #10 · answered by epo007 1 · 0⤊ 0⤋