Finding the Area of Any Triangle

Work out the area of the triangle.
Give your answer to 1 decimal place.

What is the formula for the area of a triangle given its base $b$ and perpendicular height $h$ ?

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A triangle has sides 6 cm and 10 cm, with an included angle of $40°$ . Which calculation gives its area?

Work out the area of the triangle.
Give your answer to 1 decimal place.

What is the formula for the area of a triangle given its base $b$ and perpendicular height $h$ ?

A triangle has sides 6 cm and 10 cm, with an included angle of $40°$ . Which calculation gives its area?

$6×10×sin⁡40°6\times 10\times \sin 40°$

$12×6×40×sin⁡10°\frac{1}{2}\times 6\times 40\times \sin 10°$

$12×6×10×sin⁡40°\frac{1}{2}\times 6\times 10\times \sin 40°$

$12×6×10×sin⁡80°\frac{1}{2}\times 6\times 10\times \sin 80°$

Finding the Area of Any Triangle Revision Guide