find the area of quadrilateral
Answers
½*d1*d2 = Area of Rhombus. Hence, you can take the area of last two quadrilaterals using this method.
Answer:
Step-by-step explanation:
→ To find the area of 1st quadrilateral
→ We have to divide it into two triangles.
→ then find area of two triangles and add them so we will get area of quadrilateral.
→ Area of triangle = 1/2 × b × h
→ Area of triangle ABC
→ 1/2 × 6 × 3
→ 1/2 × 18
→ 18/2
→ 9 cm²
→ Area of triangle ADC
→ 1/2 × 6 × 5
→ 1/2 × 30
→ 30/2
→ 15 cm²
→ now add them :
→ 9cm² + 15cm² = 24 cm²
→ area of quadrilateral is 24cm².
→ Area of second quadrilateral
→ we will take straight right angle triangle
→ which have. h=4.6cm and b(base)=4.6cm
→ area of triangle = 1/2 × b × h
→ 1/2 × 4.6 × 4.6
→ 1/2 × 21.16
→ 21.16/2
→ 10.58 cm²
→ area of triangle of b=4.6cm and h=4.6cm
→ area of triangle = 1/2 × b × h
→ 1/2 × 4.6 × 4.6
→ 1/2 × 21.16
→ 21.16/2
→ 10.58cm²
→ now add them :
→ 10.58cm² + 10.58cm²
→ 21.16cm²
→ so area of second quadrilateral is 21.16 cm².
→ now third quadrilateral area:
→ area of triangle of b=8cm and h = 2cm
→ 1/2 × 8 × 2
→ 1/2 × 16
→ 16/2
→ 8cm²
→ Area of triangle with b=5cm and h=4cm
→ 1/2 × 5 × 4
→ 1/2 × 20
→ 20/2
→ 10cm²
→ now add the area:
→ 8cm² + 10cm²
→ 18cm²
→ so area of third quadrilateral is 18cm².
→ please mark as brainliest answer.