A caution sign is shown in the given figure. Find the area to be painted in red (shaded in figure), in order to warn the people about the danger ahead. [Use √3=1.732]
A
443.4cm2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
440.4cm2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
438.4cm2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
449.4cm2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A443.4cm2 Area of equilateral triangle with side a is given by: √34a2 Area of larger triangle =√34(40)2 Area of smaller triangle =√34(24)2 ⇒Requiredarea=√34(40)2−√34(24)2 =√34(1600−576) =(1.732)4×1024=443.4cm2