Tan30= h/p
Tan45=h/q
p + q= 100
Use substitution
(h/tan30) + (h/ tan45 )= 100
You should be able to take over
THERE IS A SMALL ISLAND IN THE MIDDLE OF A 100M WIDE RIVER AND A TALL TREE STANDS ON THE ISLAND.pAND q RE POINTS DIRECTLY OPPOSITE EACH OTHER ON THE TWO BANKS AND IN LINE WITH THE TREE.IF THE ANGLE OF ELEVATION OF THE TOP OF THE TREE FROM p AND q ARE 30 DEGREES AND 45 DEGREES.FIND THE HEIGHT OF THE TREE.
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