होम Triangles

# Triangles

### A triangle ABC is right angled at A.

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A triangle ABC is right angled at A. AL is drawn perpendicular to BC. Then ∠BAL is equal to:: A. ∠ALC B. ∠ACB C. ∠BAC D. ∠BLA Answer: Option B Show Answer Solution(By Apex Team) \$begin{array}{l}text{In }triangle text{ABL}\ anglemathrm{BAL}+anglemathrm{ALB}+anglemathrm{B}=180^{circ}\ anglemathrm{BAL}+90^{circ}+anglemathrm{B}=180^{circ}\ anglemathrm{BAL}=90^{circ}-anglemathrm{B}quadldots..(1)\ text{In} triangle text{ABC},\ anglemathrm{A}+anglemathrm{B}+anglemathrm{C}=180^{circ}\ anglemathrm{B}+anglemathrm{C}=90^{circ}\ anglemathrm{C}=90^{circ}-anglemathrm{B}\ anglemathrm{ACB}=90^{circ}-anglemathrm{B} ....left(2right)\ text{From }left(1right) & ...

### AB and CD bisect each other at O…

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AB and CD bisect each other at O. If AD = 6 cm. Then BC is : A. 5.9 cm B. 4.8 cm C. 6 cm D. 7 cm Answer: Option C Show Answer Solution(By Apex Team) Since, AB and CD bisects each other...

### In triangle PQR length of the side QR is..

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In triangle PQR length of the side QR is less than twice the length of the side PQ by 2 cm. Length of the side PR exceeds the length of the side PQ by 10 cm. The...

### In the following figure which of the following

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In the following figure which of the following statements is true? A. AB = BD B. AC = CD C. BC + CD D. AD + CD Answer: Option B Show Answer Solution(By Apex Team) In Triangle ABD, ∠BAD + ∠B + 90° = 180° or,...

### If ABC and PQR are similar triangles..

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If ABC and PQR are similar triangles in which ∠A = 47° and ∠Q = 83°, then ∠C is: A. 50° B. 70° C. 60° D. 80° Answer: Option A Show Answer Solution(By Apex Team) Since, ΔABC and ΔPQR are similar triangles. then, ∠B =...

### Find the rate of interest if the amount after 2 years...

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Find the rate of interest if the amount after 2 years of simple interest on a capital of Rs. 1200 is Rs....