Question

Find the area of the given TRIANGLE ️
PQR
PLS TELL​

Answer 1

Answer:

Area of Triangle=1/2*breadth*height

= 1/2*8.4*10

=42cm²

Answer 2

Required Solution:

Given:

• Height (h) = 8.4 cm

• Base (b) = 10cm

To calculate:

• Area

Calculation:

We know that,

• Area of ∆ = $\dfrac{1}{2}$ bh

$\longmapsto$ Area of ∆ =$\dfrac{1}{2}$ × 10 × 8.4

$\longmapsto$ Area of ∆ =5 × 8.4

$\longmapsto$ Area of ∆ = 42 cm²

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Extra!!

Perimeter:

• Perimeter of square : 4 × side
• Perimeter of rectangle : 2 ( l + b )
• Perimeter of parallelogram : 2 ( l + b )
• Perimeter of rhombus : 4 × side
• Perimeter of trapezium : Sum of sides
• Perimeter of triangle : Sum of sides
• Perimeter of circle (circumference) : 2πr

Area:

• Area of square : (Side)²
• Area of rectangle : l × b
• Area of parallelogram : Base × height
• Area of rhombus : ½ × diagonal$\sf {_1}$ × diagonal$\sf {_2}$
• Area of trapezium : ½ × (sum of parallel sides) × h
• Area of triangle : ½bh
• Area of circle : πr²

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