New Mathematics Today Class 7>Chapter 17 - Triangles>Exercise>Q 6

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7th ICSE

IMPORTANT

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Find the unknown lettered angle.

Important Questions on Triangles

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7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 17 - Triangles>Exercise>Q 6

Find the unknown lettered angle.
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7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 17 - Triangles>Exercise>Q 7

The angles of a triangle are in the ratio of

2 : 5 : 8

. Find the angles.

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7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 17 - Triangles>Exercise>Q 8

One angle of a triangle is

50^{o}

and the other two are in the ratio

6 : 7 .

Find the angles.

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7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 17 - Triangles>Exercise>Q 9

The two acute angles of an obtuse angled triangle, whose obtuse angle measures

131 °

, are in the ratio

2 : 5 .

Find the angles.

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7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 17 - Triangles>Exercise>Q 10

Of the three angles of a triangle, one is three times the smallest and the other is five times the smallest. Find the angles.

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IMPORTANT

New Mathematics Today Class 7>Chapter 17 - Triangles>Exercise>Q 11

One of the exterior angles of a triangle is

112 °

and the corresponding interior opposite angles are in the ratio

3 : 4

. Find the angles of the triangle.

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IMPORTANT

New Mathematics Today Class 7>Chapter 17 - Triangles>Exercise>Q 12

From the figure, $∠ P Q R = x °$ , find the value of $x$ .

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7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 17 - Triangles>Exercise>Q 12

Find the value of $x$ .

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