Question

13. Triangle PQR is inscribed in a semicircle.
PQ = PR = 7 cm.
(i) What is the measure of ZQPR?
(ii) Find the shaded area.
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Answer 1

Answer:

angel of QPR is 90

area of half circle minus area of triangle

Step-by-step explanation:

area of semi circle

1/2×π×r²

1/2×22/7×7×7

77cm²

arae of∆∆∆

1/2×base ×height

1/2 ×7×7

49/2

24.5 cm²

areas of shade part

77-24.5

52.5

area shade part is 52.5 cm²