Answer:
Step-by-step explanation:
3.) Isosceles because: (of a triangle) having two sides of equal length.
4.) Equilateral because: having all its sides of the same length.
5.) Use the Pythagorean Theorem formula a^2 + b^2 = c^2
a.) 59^2 + 61^2 = 62^2
3481 + 3721 = 3844
7202 = 3844
Acute because 7202 > 3844
b.) 30^2 + 25^2 = 125^2
900 + 625 = 15625
1525 = 15625
Obtuse because 1525 < 15625
c.) 56^2 + 72^2 = 52^2
3136 + 5184 = 2704
8320 = 2704
Acute because 8320 > 2704
d.) 90^2 + 45^2 = 45^2
8100 + 2025 = 2025
10125 = 2025
Obtuse because 10125 > 2025
