Given:
In a triangle PQR, QR is produced to S.
If ∠PRS = (9x - 15)°, ∠RPQ = (2x)°, and ∠PQR = (4x + 15)°,
Concept Used:
∠PRS = ∠RPQ + ∠PQR
Solution:
∠PRS = ∠RPQ + ∠PQR
=> (9x - 15)° = (4x + 15)° + 2x
=> 9x - 6x = 30°
=> x = 10°
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60 Mins English English20 Questions40 Marks12 Mins English English80 Questions160 Marks60 Mins EnglishIn △ABC, AB = AC = 12 cm, BC = 5 cm and D is a point on AC such that DB = BC. What is the measure of CD?
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