3 years ago

I need it rn plzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Mathematics

1 answer:

Triss [41]3 years ago

4 0

9514 1404 393

Answer:

∠B = ∠C = 138°

∠D = 42°

Step-by-step explanation:

Angles between the parallel bases are supplementary:

∠B = 180° -∠A = 180° -42° = 138°

Right-side angles are the same measure as their mirrors across the line of symmetry.

∠C = ∠B = 138°

∠D = ∠A = 42°

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I need to know the answer to the question with the circle

KATRIN_1 [288]

___________________________

◆ AREA RELATED TO CIRCLES ◆ ___________________________

As shown in the figure ,

Radius of circle = 5 cm

Side of square = 2 × (Radius of inscribed circle)

Side of square = 2 × 5 cm

Side of square = 10 cm = a

___________________________

Now ,
Area of shaded region = (Area of square) - ( Area of inscribed circle )

Area of shaded region =
${a}^{2} - \pi {r}^{2}$

Area of shaded region =
${10}^{2} - \frac{22}{7} \times {5}^{2}$

Area of shaded region = 100 - 78.571

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