Question

construct triangle pqr such that qr=7.3cm angles q=60 and angle r=50 and then construct its circum circle ​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

In ∆PQR, m∠P + m∠Q + m∠R = 180° …

[Sum of the measures of the angles of a triangle is 180°]

∴ 70° + m∠Q + 50° = 180°

∴ m∠Q = 180° – 70° + m∠Q + 50° = 180°

∴ m∠Q = 180° – 70° – 50°

∴ m∠Q = 60°

Steps of construction:

i. Construct A PQR of the given measurement. ii. Draw the perpendicular bisectors of side PQ and side QR of the triangle.

iii. Name the point of intersection of the perpendicular bisectors as point C.

iv. Join seg CP

v. With C as centre and CP as radius, draw a circle which passes through the three vertices of the triangle