Select all that apply.
classify the triangle.
scalene
isosceles
equilateral
equiangular
obtuse
right
acute

Equilateral, equiangular, acute

Step-by-step explanation:

Since it is an equilateral angle, then it is equiangular and its legs are congruent. Since it has no angle greater than 90º then it is not obtuse. As all angles sizes 60º their measure are equal to under to 90º, this triangle is an acute one. No 90º angle no right angle.

So, in short.

This is a(n)

Equilateral, equiangular and acute

there is no

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm