Question

In an educational institution a programme on 'Sarv Shiksha Abhiyan' was organised, for which members of the institution were given triangular shaped cardboards for writing slogans. Based on the given figure, answer the following


question : 1) If PQ = 29 cm and PR = 21cm, then the length A of QR is R P a) 10 cm b) 15 cm c) 20 cm d) 29 cm
question :2)If angle PQR = 0, the value of sin^2a- cos^2a) -81/841 b) 41/841 c) 1 d) 841/ 41​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

1. QR = 20 cm
2. b) 41/841