Respuesta :

First of all we need to work out the other side of the triangle. To do this, we will use Pythagorean’s Theorem:

a = 7 and b = 25

c² = a² + b²

c² = 7² + 25²

c² = 49 + 625 = 674

c = √674

c = 25.96

Area of a trapezoid = ((a + b) / 2) x h

a = 4

b = 4 + 7 = 11

h = The side of the triangle we just worked out: 25.96

A = ((4 + 11) / 2) x 25.96

A = (15 / 2) x 25.96

A = 7.5 x 25.96

A = 194.7

The area is 194.7units²

Otras preguntas