Respuesta :

amna04352

Answer:

MA = 30

MR = 30sqrt(2)

SA = 2400

Step-by-step explanation:

½MA:

sqrt(PS² - alt²)

sqrt(25² - 20²)

sqrt(225)

15

MA = 2 × 15 = 30

MR² = 30² + 30²

MR² = 1800

MR = sqrt(1800)

MR = 30sqrt(2)

Base + 4 triangles

30² + 4(½ × 30 × 25)

2400