**New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 7 Properties of Triangles Self Practice 10A Solution**

Ans. <BOC = 130 degree.

<OBC = 20 degree.

**(5) The angles of a triangle are in the ratio 2 : 3 : 4. Find the measure of each angle of the triangle.**

**(6) Which of the following groups of 3 angles cannot be the angles of a triangle?**

**(a) 60 ^{o}, 50^{o}, 70^{o}**

**(b) 49 ^{o}, 72^{o}, 63^{o}**

**(7) A triangle has two equal angles, each of which is equal to twice the remaining third angle. Find the angles of the triangle.**

**Solution Number 5, 6 & 7:**

Mam/Sir please post self practice 10B soon

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