Question
ABCD is a rectangle with $\angle\text{ABD}=40^\circ$. Determine $\angle\text{DBC}$.
✓
Answer
$\angle\text{ABC}=90^\circ$ $\Rightarrow\angle\text{ABD}+\angle\text{DBC}=90^\circ$ $\Rightarrow40^\circ+\angle\text{DBC}=90^\circ$ $\Rightarrow\angle\text{DBC}=50^\circ$Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
If $\text{x}=3+2\sqrt2,$ than find the value of $\sqrt{\text{x}}-\frac{1}{\sqrt{\text{x}}}.$
→Verify that:
$1$ and $2$ are the zeros of the polynomial $p(x)=x^2-3 x+2$.
→$1$ and $2$ are the zeros of the polynomial $p(x)=x^2-3 x+2$.
Curved surface area of a cone is $308 \ cm^2$ and its slant height is $14 \ cm$. Find the radius of the base.
→$ABCD$ is a rhombus show that diagonal $AC$ bisects $\angle $A as well as $\angle C$ and diagonal $BD$ bisects $\angle B$ as well as $\angle D$
→In $\triangle A B C, B C=8 cm$ and $C A=7 cm$. If $D$ and $E$ are respectively the mid-points of $A B$ and $B C$, determine the length of $D E$.
→Simplify the following:
$0.76 \times 0.76+2 \times 0.76 \times 0.24+0.24 \times 0.24$
→$0.76 \times 0.76+2 \times 0.76 \times 0.24+0.24 \times 0.24$
Insert a rational and an irrational number between $2$ and $2.5$
→Arun scored $36$ marks in English, $44$ marks in Hindi, $75$ marks in mathematics and $x$ marks in science. If he has secured an average of $50$ marks, find the value of $x.$
→$A B C D$ is a square. $A C$ and $B D$ intersect at $O$. state the measure of $\angle A O B$.
→Express the following equation in the form $ax + by + c = 0$ and indicate the values of $a, b, c$ in case. $x + y = 4$
→