Answer:
option - d
Step-by-step explanation:
a^2 + b^2 = c^2
9^2 + b^2 = 13^2
81 +b^2 = 169
b^2 = 169 - 81 = 88
b= = ( take the one doubling out )
=
d
base² + Altitude² = Hypotenuse²
x² + 9² = 13²
x² + 81 = 169
x² = 169 - 81
x² = 88
x =
false becasue 11,12,13,14,15,16,17,18,19,20,21, and 22 is bigger and 111,112,113,114,115,116,117,118,119,120,121, and 122 is smaller.
2
Red Given:
Red Solution:
Orange ar.(Triangle)=220cm^2
B, 21
78 minus 57 is 21, thus B is the correct choice