Question

plz answer my question unesscessory messages will be reported plz humble request to everyone​

Answer 1

Answer:

With Full explanation

Answer 2

Explanation:

3. Given:

Length of the base (b) = 400cm = 400/1000m = 0.4m

Area of the triangle = 70 m²

Height of the triangle (h) =?

Now, area of the triangle = 1/2 × b × h

⇒ 70 = 1/2 × 0.4 × h

⇒70 = 0.2h

⇒h = 70/0.2

⇒h = 70 × 10/2

⇒h = 70 × 5

⇒h = 350m

4. Given:

Circumference of circle = 56cm

The diameter of circle =?

Area of circle =?

Now, the circumference of circle = 2πr

⇒ 56 = 22/7 × d (∵2r=d)

⇒ d = 56 × 7/22

⇒d = 392/22 m

Area of the circle = πr²

                            = 22/7 × 392/44 × 392/44

                            = 3380608/13552

                            = 249.4545/1000000

                            0.0002494545m²