Question

Tolong jawab pertanyaan yang ada digambar ini , disertai cara yang mudah

Answer 1

PQ/ST = RQ/RT
10/4 = (2+a)/2
5/2 = (2+a)/2

5 = 2 + a
a = 5 - 2
a = 3

RQ = 2 + 3
= 5 cm

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PR = √(10² + 5²)
= √(100 + 25)
= √(125)
= √(25.5)
= 5√5 cm

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QPR = 180 - (90 + x)
= 180 - 90 - x
= (90 - x)°