Home
Class 7
MATHS
The following steps are involvedd in fin...

The following steps are involvedd in finding the angles of the triangles ABC, when `angleA: angleB: angleC=1:2:3`. Arrange them in sequential order.
(A) Let the angle be `angleA=x, angleB=2x and angleC=3x`.
(B) Given `angleA: angleB: angleC=1:2:3`
(C ) `angleA=30^(@),angleB=2(30^(@))=60^(@) and angleC=3(30^(@))=90^(@)`.
(D) `angleA+angleB+angleC=180^(@)implies x+2x+3x=180^(@)`
(E ) `6x=180^(@)impliesx=30^(@)`

Promotional Banner

Similar Questions

Explore conceptually related problems

In an isosceles triangle ABC, AB=AC and angleA=3angleB. Find angleC .

In DeltaABC , if angleA:angleB:angleC=1:2:3 , then what is BC:CA:AB?

A,B and C are three angles of a triangle A-B=15^@,B-C=30^@ , find angleA,angleB and angleC

In a triangleABC if 3 angleA=4angleB=6angleC ,calculate angleA

In DeltaABC,2angleA=3angleB=6angleC , then find angleA .

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

In DeltaABC, angleA=x+15^(@),angleB=x and angleC=2x-35^(@) find, each angle of the triangle.

In DeltaABC, angleA=x+15^(@),angleB=x and angleC=2x-35^(@) find, each angle of the triangle.