P=L+L+L
P=15+21+7
P=43cm
A=b×h/2
A=7×15/2
A=105/2
A=52.5 cm²
dame coronilla plis
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Verified answer
P=L+L+L
P=15+21+7
P=43cm
A=b×h/2
A=7×15/2
A=105/2
A=52.5 cm²
dame coronilla plis