Area of
triangle 13 13 10

60 square units

Step-by-step explanation:

Area = (b*h)/2

Half the base: 5 (triangle: 5, h, 13)

a^2 + b^2 = c^2

5^2 + h^2 = 13^2

25 + h^2 = 169

h^2 = 169 - 25

h = sqrt 144

Height = 12

Area = (10*12)/2

Area = 60 square units

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: