How many triangles are there in the given figure?
19
To determine the number of triangles in a given figure, a systematic approach is usually followed: Identify the smallest triangles – Count all individual small triangles. Look for larger triangles – Count combinations of small triangles forming bigger ones. Consider overlapping triangles – Check for hidden or overlapping triangles. Apply triangle counting formulas – In some cases, formulas for structured triangular grids or star-like figures help. Since the correct answer is 19, this suggests the given figure has multiple overlapping and combined triangles that sum up to 19.
Important Questions from Triangles
Two poles, 15 m and 30 m in height, stand upright in a playground. If their feet are 36 m apart, then find the distance between their tops.
How many triangles are there in the given figure?
Find the area (in square cm) of a right angled triangle whose altitude is 7 cm less than its base and its hypotenuse is 17 cm.
In ΔABC, if ∠A = 70° and ∠B = 70°, find the measure of exterior angle A.
Two similar triangles are \( \triangle ABC \) and \( \triangle LMN \). If the area of \( \triangle ABC = 25 \) cm², the area of \( \triangle LMN = 36 \) cm², and BC = 2.5 cm, then the measure of MN (in cm) is:
