Home
Class 10
MATHS
In a DeltaABC, angleC=3angleB=2(angleA+a...

In a `DeltaABC, angleC=3angleB=2(angleA+angleB)`. Find the three angles.

Text Solution

Verified by Experts

The correct Answer is:
` angleA=20^(@); angleB=40^(@);angleC=120^(@)`
Promotional Banner

Topper's Solved these Questions

  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    KUMAR PRAKASHAN|Exercise Practice Thoroughly|20 Videos

  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    KUMAR PRAKASHAN|Exercise Objective Questions (Fill in the blanks)|5 Videos

  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    KUMAR PRAKASHAN|Exercise EXERCISE 3.6|11 Videos

  • INTRODUCTION TO TRIGONOMETRY

    KUMAR PRAKASHAN|Exercise Objective Questions|24 Videos

  • POLYNOMIALS

    KUMAR PRAKASHAN|Exercise OBJECTIVE QUESTIONS|26 Videos

Similar Questions

Explore conceptually related problems

In DeltaABC,angleA:angleB:angleC=3:4:5 . Find the measure of each angle of DeltaABC .

In DeltaABC,angleA=(angleB+angleC)/(3) and angleB:angleC=2:1 . Find the measure of each angle of DeltaABC and state the type of DeltaABC .

In DeltaABC , angleA=(2pi^(c))/(3) and angleB=45^(@) . Find angleC in both the systems.

In DeltaABC,angleB=55^(@) and angleC=65^(@) . Then the measure of an exterior angle of DeltaABC cannot be .............

In DeltaABC,angleA=70^(@) and angleB=60^(@) . Then the measure of an exterior angle of DeltaABC can be ............

What is the measure of angleA + angleB + angleC + angleD + angleE + angleF in the figure given below. Give reason to your answer.

Fill in the blands so as to make each of the following statements true : In DeltaABC,angleA=40^(@) and angleC=50^(@) . Then the smallest side of DeltaABC is ……….

angleACD is an exterior angle of DeltaABC . If angleACD=110^(@) and angleA=60^(@) , then angleB= ..........,

In DeltaABC , right angled at B, AB=35 cm and BC=12cm. Find the values of (1) sinA (2) cosA (3) sinC (4) cosC.

In DeltaABC , the bisectors of angleB and angleC intersect each other at O. Prove that. angleBOC=90^(@)+(1)/(2)angleA .