In an isosceles triangle PQR- PQ - PR and angle Q measures 40- then the measure of angle P is-A- 140-B- 60-C- 100-D- 80-

The correct option is C 100o In isosceles triangle PQR, PQ = QR Thus, Angle Q = Angle R = 400 Now, Angle P + Angle Q + Angle R = 1800 Angle P + 400 + 400 = 180 ...

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Standard VII

Mathematics

RHS Criteria for Congruency

In an isoscel...

Question

In an isosceles triangle PQR, PQ = PR and angle Q measures 40^o then the measure of angle P is:

140^o

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60^o

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100^o

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80^o

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Solution

The correct option is C
100^o

In isosceles triangle PQR, PQ = QR

Thus, Angle Q = Angle R = 40⁰

Now, Angle P + Angle Q + Angle R = 180⁰

Angle P + 40⁰ + 40⁰ = 180⁰

Angle P = 180⁰- 80⁰= 100^o

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In an isosceles triangle PQR, PQ = PR and angle Q measures 40o then the measure of angle P is:

The correct option is C 100o In isosceles triangle PQR, PQ = QR Thus, Angle Q = Angle R = 400 Now, Angle P + Angle Q + Angle R = 1800 Angle P + 400 + 400 = 1800 Angle P = 1800 - 800 = 100o

In an isosceles triangle PQR, PQ = PR and angle Q measures 40^o then the measure of angle P is:

The correct option is C
100^o

In isosceles triangle PQR, PQ = QR

Thus, Angle Q = Angle R = 40⁰

Now, Angle P + Angle Q + Angle R = 180⁰

Angle P + 40⁰ + 40⁰ = 180⁰

Angle P = 180⁰- 80⁰= 100^o