67.50? i think... maybe double check though.
Answer:
The hight length : h
The base length : a
Apply the Pythagorean theorem in the right triangle :
h² = 13² - (10/2) = 144
h = √144 = 12 cm
S = (a x h)/ 2 = ( 10 x 12 )/2 = 60 cm²
Step-by-step explanation:
combine like terms on the left side. you always go from left to right.
Answer:
7a........they are similar because none of the sides are equal
