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India
Class IX

Angles in Triangles Revision

Interactive practice questions

Consider the image attached.

Find $x$x giving reasons.

Easy
1min

Find $x$x, giving reasons for your answer.

Easy
1min

Triangle ABC is a right-angled triangle. It is reflected about one of its edges and the two triangles together form an acute isosceles triangle. Along which edge is it reflected?

Easy
< 1min

A rectangle’s length is $5$5 times its width. How many isosceles right-angled triangles can fit exactly into the rectangle if the equal side lengths of the triangle measure the same as the width of the rectangle?

Easy
1min
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Outcomes

9.G.LA.2

The sum of the angles of a triangle is 180°. If a side of a triangle is produced, the exterior angle so formed is equal to the sum of the two interior opposite angles.

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