In a right-angled triangle if one of the...

In a right-angled triangle if one of the acute angles ,measures `40^(@)`, find the measure of the other acute angles.

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ICSE-PROPERTIES OF TRIANGLES-Exercise 18A

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The angles of a triangle are in the ratio 3:5:4. Find the measure of ...
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One of a angle triangle measures 30^(@) and the other two angles are i...
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In a right-angled triangle, the two acute angles are in the ratio 4:5....
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One of the two equal angles of an isosceles triangle measures 65^(@). ...
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Find the measures of each of the two equal angles of an isosceles righ...
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If all three angles of a triangle are of the same measure, find the me...
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In a right-angled triangle if one of the acute angles ,measures 40^(@)...
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Find the unknown angles marked in each of the following figures :
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In each of the following figures, one side of a triangle has been prod...
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Calculate the size of each lettered angle in the following figures :
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Use the given figure to express : (i) a in terms of b and f, (ii) ...
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(i) In the given figure, DeltaABC is an isosceles triangle in which AB...
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In the given figure, AB||CD. The line segments BC and AD intersect at ...
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Each base angle of an isosceles triangle is 15^(@) more than its verti...
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The vertical angle of an isosceles triangle is twice the sum if its ba...
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In an isosceles triangle, each base angle is four times its vertical a...
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The ratio between the base angle and the vertical angle of an isoscele...
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In the given figure, DeltaABC is an equilateral triangle whose side BC...
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Find the unknown marked angles in each of the following figures :
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