1801lipez 1801lipez

22-07-2020
Mathematics

contestada

I NEED HELP!
Rectangle ABCD is drawn with diagonal AC, which has a measure of 20cm. Angle BACmeasures 30°. What is the
perimeter and area of the rectangle?

Respuesta :

valerieulbrich valerieulbrich

22-07-2020

Answer:

Perimeter = 54.6 cm

Area = 173 cm²

Step-by-step explanation:

sin 30 = x/20

x = 10

cos 30 = y /20

y = 17.3

perimeter = 10 + 17.3 + 10 + 17.3 = 54.6 cm

area = 10 * 17.3 = 173 cm²

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