Estimate the circumference of a circle that has a diameter of 13 yards

Brent wants to know what is 5 x 1/2

Brent needs to paint a logo made using two right triangles. the dimensions of the logo are shown below. what is the difference between the area of the large triangle and the area of the small triangle? (1 point) select one: a. 4.5 cm2 b. 8.5 cm2 c. 16.5 cm2 d. 33.0 cm2

Can someone answer this question? : )